The Lin family's little boy returns to being eight years old, taking his family to new heights.

"Xiao Yi, quick, give me the antidote."

Then I had something in my hand.

She covered her mouth and said, "This toilet smells a bit." Then she swallowed a meatball.

"Ouch, I feel a little dizzy!"

"Are you okay, miss."

The middle-aged man reached out, seemingly to touch her head, but the old woman beside him reacted quickly, grabbing the man's wrist in an instant, her voice icy: "Stop!"

The man cried out in pain, "W-what are you doing..."

"What do you want to do?"

The middle-aged man sensed something was wrong, shook off the old woman's hand, and ran out of the car right next to the toilet.

The passengers who were boarding the bus were jolted and were about to curse when an old woman ran out, followed by a little girl.

"You're sick!"

Lin Xi now understood that the middle-aged man was the human trafficker, and that he was the only one who had contact with her from beginning to end.

I never imagined I'd been fooled.

But what was that old lady doing? An undercover police officer? But having already been fooled once, she dared not trust anyone.

He caught up with the old lady in a few steps, picked her up and ran, chasing after the middle-aged man.

"Hey, hey, hey, why are you carrying me? Put me down! That person is the human trafficker!"

"I know."

"You know why you're carrying me? We won't be able to catch up in a minute!"

The old woman kicked her legs and struggled, but the little girl's arms were like steel wires, tightly binding her waist.

Ignoring everything else, Lin Xi caught up with the man in a few steps and kicked him to the ground.

He stepped on the man's back, then put the old woman down, took off his clothes, and tied her up.

The old lady stared in astonishment at her outrageous antics, and what happened next left her utterly speechless.

The girl pinned the man down and started punching him in the face, cursing as she did so.

"I'll fucking kill you! How dare you lie to me!" Bang!

"You bastard! I've always been smart, but you pecked my eye!" *Bang!*

"You despicable human trafficker, you even dared to drug me!" Bang!

"Playing the victim! I'll teach you to play the victim!" Bang!

……

He punched the man for every word he said, and in just a few blows, the man's face was completely disfigured, he was spitting out blood and several teeth.

The old woman finally came to her senses and hurriedly shouted, "Stop hitting him! Stop hitting him! You'll kill him!"

The girl stopped and then glared at her fiercely.

Wow, this girl is too fierce! I hope she won't hit me.

She said weakly, "Hitting someone is illegal..."

Lin Xi wiped the blood off her hands with the man's clothes. "Tell me, what are you doing? Why are you pretending to be an old lady!"

This guy's aura is more like that of a policeman than I am!

“I am a police officer, and I have my identification in my pocket.”

Lin Xi reached into her hand and pulled out a police ID card. Yan Lingling, 24 years old...

Yes, it has a stamp, it's genuine.

With her clothes undone, Yan Lingling rubbed her wrists. "Little sister, you're so strong! You carried me and ran so fast."

Lin Xi is in a bad mood right now. She was so stupid to have fallen for the human traffickers' tricks and even mistook someone else for her.

She said irritably, "Next time you're pretending, be a little more careful. What old lady has such white hands?"

The train was about to depart, and it sounded a whistle. She slapped her forehead and hurriedly ran back to the carriage.

Oh no, Ms. Su must be so worried!

Su Youcai was indeed in a hurry because he was locked in the toilet.

The toilet was at the very back of the carriage, and he called for a long time, but no one came to open the door.

Lin Xi returned and, hearing the shouts, released him.

"Oh dear, Xiao Xi, I wonder who locked me inside? That's so inconsiderate!"

"Yeah, that's right, it's really despicable!"

"He's heartless and rotten to the core, utterly despicable. May he choke on his water and swallow his food for the rest of his life..."

Seeing that she was even angrier than he was, Su Youcai's anger subsided considerably for some reason, and he even comforted her, saying, "It's alright, Xiaoxi, maybe someone accidentally bumped into her..."

Yan Lingling dragged the human trafficker back to the police station. The chief looked at the unconscious man and his lips twitched. "Did you have to beat him like this?"

“I didn’t hit him, it was the little girl he was trying to abduct who hit him.”

The bureau chief had an air of "Do you think I believe you?"

"Really, please listen to me..."

After a long pause, the bureau chief said, "I think she's just angry and embarrassed. She's quite a talent, but it's a pity I don't know her name."

However, Yan Lingling learned Lin Xi's name that very night.

She called her cousin and told him about it. The person on the other end was Yan Feng. The more he listened, the more he felt that her behavior resembled Lin Xi. He then described her appearance, and it really matched.

Later, he deeply regretted telling Yan Lingling about it, and from then on, Danbei City and Danyang City began a fierce competition to recruit talent.

Lin Xi got off the high-speed train and went straight to the exam site.

The hall was filled with the nation's most outstanding talents, including many children her age.

Lin Xi sighed.

They have no system, no rebirth; they are genuine geniuses, while I am somewhat embellished.

Xiao Yi: Luck is also a part of ability.

As soon as she sat down, Lin Zixuan ran over. "Lin Xi, I've been waiting for you for ages! Why did it take you so long?"

"Isn't it supposed to start at two o'clock? It's only one o'clock, why are you here so early?"

Lin Zixuan's face tightened. "You don't know?"

"Huh? What should I know?"

"Wang Anshi is here! He's the teacher who set the exam questions this time. He's planning to take on students. Everyone should come and make an appearance beforehand."

Wang Anshi was a mathematics professor at Peking University, and he wrote many Olympiad math books.

Lin Xi looked indifferent. "So, have you made it?"

Lin Zixuan shook his head, "No, when we got there we went to the top floor, but there were security guards blocking the way, and no one dared to go up."

"But I don't mind, it's just that our teacher insisted that I come early."

In the bustling hall, everyone was chatting with acquaintances, except for Lin Xi, who was reading a junior high school math book.

Lin Zixuan was also studying junior high school courses on his own, but he hadn't gotten to this point yet. He sat aside and followed along, asking a few questions from time to time.

Unbeknownst to them, Wang Anshi, whom they most wanted to see, was looking down at the hall from the third floor.

"Teacher Wang, are there any children you know among them?"

The short, chubby old man shook his head. "No."

"Then what are you doing?"

"Just for fun."

The young and inexperienced students standing nearby were immediately speechless at those words.

Forget it, I'm used to it.

The old man glanced at Lin Xi and Lin Zixuan, then walked away with his hands behind his back.

The exam began, and Lin Xi, as usual, first flipped through the exam paper. Hmm? There's something here!

That old man named Wang something is indeed quite formidable.

She finished the previous questions in one go, but for the last question, she paused and pondered for a long time before starting to write and draw on the scrap paper.

This question indicates that there are multiple solutions, and ten points will be added for each additional solution found.

Lin Xi was wondering if she could use high school knowledge to solve it.

Anyway, just write it down. Even if it's not allowed, you won't lose points.